Finding the Fourth Proportional to 321,114.21, 443,137.59 and 177,883.53

Step by Step Solution

1. Step 1: Write the proportion equation
   321,114.21 : 443,137.59 = 177,883.53 : x
2. Step 2: Convert to fraction form
   321,114.21/443,137.59 = 177,883.53/x
3. Step 3: Cross multiply
   321,114.21x = 443,137.59 × 177,883.53
4. Step 4: Simplify right side
   321,114.21x = 78,826,878,784.89
5. Step 5: Solve for x
   x = 78,826,878,784.89/321,114.21
6. Step 6: Final answer
   x = 245,479.26